I can't fully remember from when I changed mine out. But I am quite sure removing one side of the exhaust made it a heck of a lot easier to get the starter out.
My old starter would take a few more turns than usual to fire up the car (I assume it's due old age), so that's why I changed it out...
I have fitted Febi pulleys before, very good quality (looked like OEM ones).
I had a couple of squeaky pulleys, so thought I get to them before they start to seize.
I have fitted a Bosch 010 IC pump before, direct swap, super easy.
My father’s 1999 E Class has auto heated mirrors, no button pressing required. It is temperature related, I don’t know what the present value is but it’s still functioning fine after all these years.
Check the back of your mirror (glass) to see if you have the 2 wires for the heated mirror...
If you are still on the original springs, try and find the colour codes on the springs. I have ordered springs from MB before and the first thing they ask me was what colour code was on the current springs.
There is a normalization process because I have done it for my W211 but I can’t remember exactly the steps. It’s was a bit fiddly compared to your standard STAR window normalization.
When I can get chance I will look around in the sim mode for the options.
Downside of running the lowering module. I have to keep my battery topped up with a charger.
Possible solution - I might try going to the side fuse panel and pulling the suspension module fuse, and just remembering to plug it back in before starting the car. A bit annoying that I will have to...